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I need to install Leopard OSX on my mac.

When the mac starts, I hold the alt button and I load the Leopard Installation DVD. Afterwords I can only see the Apple logo on the screen and everything seems stuck (waited for 8 minutes so far).

How much am I supposed to wait to see the first istructions when loading the Installation DVD at boot time ?


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Is this the Leopard DVD initially delivered with your Mac? Which Mac model? – patrix Jan 14 '13 at 10:01
@patrix Yes, delivered with a mac in the office (not sure if it is mine). Mac OS version 10.6.4 - Disc version 4.0 – Patrick Jan 14 '13 at 10:04
@Patrick - is your Mac newer than the one the DVD was delivered with? – Mark Jan 14 '13 at 10:25
@Mark not sure about it, unfortunately :( – Patrick Jan 14 '13 at 10:32
And your Mac is which model/year? – patrix Jan 14 '13 at 10:35

You most probably won't be able to install this OS X version on your iMac:

As a general rule you can't install older OS X discs on newer hardware (missing drivers etc.).

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